APA (7e ed.) Bronvermelding

Não informado. (1971). American Family Physician. American Academy of Family Physicians.

Chicago (17e ed.) Bronvermelding

Não informado. American Family Physician. Kansas City, Kan: American Academy of Family Physicians, 1971.

MLA (8e ed.) Bronvermelding

Não informado. American Family Physician. American Academy of Family Physicians, 1971.

Let op: Deze citaties zijn niet altijd 100% accuraat.